The dental crown is the upper part of the teeth, which gives them their shape according to their function—the front teeth are sharper for cutting; the back teeth are flat for grinding. However, due to cavities, trauma, or other problems, it can be compromised, affecting both aesthetics and dental function. To solve the problem and restore the smile, a porcelain crown or crowns made of other materials are used.
Dental crown prostheses function like a kind of cap, covering the natural tooth to restore its function. They are not new to dental offices, as they have been used since the end of the 20th century, but that doesn't mean technology hasn't changed them. Today, they are more resistant and, above all, more aesthetic, allowing for a very natural look.
Since the crown needs to cover the tooth, something is needed to "cement" it in place. A variety of materials can be used for this purpose, bearing in mind that they can affect the aesthetic result, which is very important for those seeking to restore their smile. Learn about the main types of dental crowns.
1. ### Provisional
What are the most common types of dental crowns?
A temporary prosthesis, as the name suggests, will not remain permanently on the tooth. It is a kind of emergency solution for patients who have experienced some type of trauma or other problem in their anterior teeth—the teeth that are in the front—and need to leave the dental office rehabilitated, even if only temporarily. Temporary dental crowns are made of acrylic resin, which looks very natural and can be made in the dental office.
2. ### Resin
In conclusion
This is one of the most common options due to its affordable price. However, it has some disadvantages: resin is a very porous material that easily absorbs substances, and this can cause the crown to become a source of bad breath.
Another consideration regarding resin dental crowns is their durability, which is much lower, since the material wears down and can break easily. It's no wonder they are used for temporary crowns!
3. ### Made entirely of metal
The oldest type of dental crown prosthesis is still in use, although it is increasingly less chosen by patients. The main reason is the aesthetic factor, since the color of the metal contrasts sharply with the natural color of the teeth, so the prosthesis will almost always be visible. But there are some cases where its use is advised, such as when the space between the teeth is very small.
4. ### Metal-ceramic
Remember when it was mentioned that the prosthesis is "cemented" to the tooth? In the case of metal-ceramic dental crowns, this alloy is made in a metal substructure, which is covered by ceramic. It is the most commonly used type because it is resistant and provides good aesthetics, and is also highly recommended for patients with bruxism.
5. ### Zirconia
This material was considered a major revolution. Zirconia crowns are durable and highly aesthetic. In this model, there is no metal in the internal structure, which allows light to pass through the prosthesis, making it the same color as the natural tooth.
Furthermore, the material does not cause the appearance of grayish stains near the gums and, moreover, because it does not contain metal in its manufacture, it does not cause allergies.
6. ### Ceramics
Made of porcelain, these crowns are entirely crafted from the same material, containing no metal in the substructure, which makes them even more similar to natural teeth.
For this reason, they are highly recommended for treating front teeth, but if the patient has problems with a very strong bite or teeth grinding, a different, more resistant type is advised.
Dental crowns are a reliable and versatile solution for restoring both the function and appearance of damaged teeth. With advances in dental technology, today’s crowns offer a wide range of materials that balance strength, durability, aesthetics, and cost. From temporary options to highly aesthetic ceramic and zirconia crowns, the ideal choice depends on the tooth’s location, the patient’s bite, and individual expectations. A dentist’s evaluation is essential to selecting the crown that will provide the best long-term results and a natural, confident smile.
Indication for Full Coverage Crowns
